These printers use the Casio IR-90 Purple cartridge:
Click On a Printer to View it's Cartridges
          Casio 3404 ER
          Casio 3408 ER
          Casio 3508 ER
          Casio 3530 ER
          Casio 4404 ER
          Casio 4420 ER
          Casio 4430 ER
          Casio CE 285 V
          Casio CE 2100
          Casio CE 2104
          Casio CE 2108
          Casio CE 2208
          Casio CE 3100
          Casio CE 3115
          Casio CE 3200
          Casio CE 3215
          Casio CE 3400
          Casio CE 3405
          Casio CE 3415
          Casio CE 3500
          Casio CE 3530 ER
          Casio CE 3535
          Casio CE 3630
          Casio CE 3640
          Casio CE 3680
          Casio CE 3700
          Casio CE 3750
          Casio CE 3800
          Casio CE 3815
          Casio CE 3820
          Casio CE 3830
          Casio CE 3840
          Casio CRS 400
          Casio SR 6
          Casio TK 100
          Casio TK 700
          Casio TK 710
          Casio TK 1000
          Casio TK 1100
          Adler 470 CR
          Adler-Royal ER 185
          Allen Rc RC 204
          Allen Rc RC 209
          Allen Rc RC 305
          Allen Rc RC 310
          Allen Rc RC 322
          Aster GA 705
          Aster GA 706
          Aster GA 709
          Aster GA 715
          B-and-E R 270-2
          B-and-E R 270 V
          B-and-E RE 270-4
          B-and-E RE 3100
          B-and-E RE 6100-10
          B-and-E RE 6100-20
          B-and-E RE 6100-30
          B-and-E RE 6100-40
          B-and-E RE 6100 GP
          CRS 405
          CRS 408
          CRS 812
          CRS 828
          Data Terminals Comm. 1500
          Data Terminals Comm. 1600
          Data Terminals Comm. 1700
          Data Terminals Comm. 1800
          Epson CR 801
          Epson CR 802 A
          Epson CR 812
          Epson CR 900
          Epson CR 901
          Epson CR 910
          Epson CR 911
          Esper 7100
          Esper 7200
          Gold 100
          Gold 101
          Gold 108
          Gold 221 L
          Gold 330
          Gold 430
          JCM Gold 211
          JCM Gold 223
          JCM Gold 2200
          JCM Gold 4800
          Kingtron CX Series
          Kingtron DX Series
          Kingtron EX Series
          NCR 2106
          NCR 2109
          Olivetti Mercator 16
          Olivetti Mercator 20
          Olivetti Mercator 25
          Olivetti Mercator 40
          Omron RS 12-00
          Omron RS 14-30
          Omron RS 16
          Omron RS 16-30
          Omron RS 16-40
          Omron RS 16-50
          Omron RS 2010 D
          Samsung CR 812 A
          Samsung ER 1710 A
          Samsung ER 1805
          Samsung ER 1810
          Samsung ER 2610
          Samsung ER 2615
          Samsung ER 2710
          Samsung ER 2715
          Samsung ER 3715
          Samsung ER 3740
          Samsung ER 4100
          Samsung ER 4715
          Sanyo 365
          Sanyo 370
          Sanyo 460
          Sanyo 470
          Sanyo 500
          Sanyo 505
          Sanyo 510
          Sanyo 515
          Sanyo 550
          Sanyo 560
          Sanyo 570
          Sanyo ECR 305
          Sanyo ECR 325
          Sanyo ECR 335
          Sanyo ERC 338
          Sanyo ECR 345
          Sanyo ECR 355
          Sanyo ERC 360
          Sanyo ERC 360-4
          Sanyo ERC 360-8
          Sanyo ERC 365
          Sanyo ERC 370
          Sanyo ERC 375
          Sanyo ECR 380
          Sanyo ECR 450
          Sanyo ERC 460
          Sanyo ERC 470
          Sanyo ERC 500
          Sanyo ECR 505
          Sanyo ERC 510
          Sanyo ECR 515
          Sanyo ECR 520
          Sanyo ECR 550
          Sanyo ECR 560
          Sanyo ECR 570
          Sanyo ECR 570 N
          Sanyo ECR 600
          Sanyo ECR 4400
          Sanyo ECR 4810
          Sanyo ECR 4818
          Sanyo ECR 5400
          Sanyo ECR 5800
          Sanyo ECR 6020
          Sanyo ECR 330 D
          Sanyo LX 500
          Sanyo LX 550
          Sharp ER 1875
          Sharp ER 1920
          Sharp ER 1921 S
          Sharp ER 1970
          Sharp ER 2370
          Sharp ER 2380
          Sharp ER 2381
          Sharp ER 2385
          Sharp ER 2386
          Sharp ER 2386 S
          Sharp ER 2390
          Sharp ER 2391
          Sharp ER 2395
          Sharp ER 2396
          Sharp ER 2540
          Sharp ER 2541
          Sharp ER 2590
          Sharp ER 2590 S
          Sharp ER 2592
          Sharp ER 2595
          Sharp ER 2905
          Sharp ER 2908
          Sharp ER 2910
          Sharp ER 3010
          Sharp ER 3536
          Sharp ER 3600
          Sharp ER 3630
          Sharp ER 3660
          Sharp ER-A 320
          Sharp ER-A 330
          Sharp XE 2055
          Sweda 1575
          Sweda 1915
          Sweda 1920
          Sweda 2810
          Sweda 2820
          Sweda 2845
          Sweda L 28
          Tca 941
          Tca 942
          Tca 943
          Tca 944
          Teknika G 2000
          Teknika G 2010
          Teknika G 2200
          Teknika G 2220
          Teknika G 2230
          Teknika G 2240
          Teknika G 2400
          Teknika G 2600
          Teknika G 2800
          Teknika G 3000
          Teknika G 4000
          Teknika G 5200
          Towa Apollo 4
          Towa Apollo 8
          Towa TA 250
          Towa TA 251
          Towa TA 252
          Towa TA 254
          Towa TA 270
          Towa TA 274
          Unitrex 4000
          Uniwell U 300
          Victor 2700
          Victor 3008